TUTORIALS

Tutorial 2: Wireless Ad Hoc Networking CANCELLED DUE TO PRESENTER'S UNEXPECTED DIFFICULTIES

This tutorial gives a state-of-the-art survey on the most important issues regarding the ad hoc networking concept. Ad hoc networks are temporary formed networks, without predefined infrastructure, which exist as long as their users require. Their key features comprise dynamic network topology, distributed network nature, multi-hop communication, limited bandwidth and energy constraints and vulnerability to intruders and malicious attacks. The solution of these problems imposes serious challenges in front of network researchers and designers. Ad hoc networks may be used in various situations ranging from business environments to catastrophic events. Devices enabling the ad hoc networking paradigm are becoming smaller, cheaper and with lots of embedded capabilities delivering services seamlessly to end-users and paving the path towards 4G.
The persistent efforts for ability to establish dynamic wireless connections from anywhere to anyone with any device without prerequisite embedded infrastructure move the communications boundaries towards the ad hoc networks. Ad hoc networking recently attracts grown interest due to advances in wireless communications and developed framework for running IP based protocols. The expected degree of penetration of these networks will depend on successful resolving of key features and problems. Moving towards 4G, ad hoc networks receive growing interest due to users’ provisioning of mobility, usability of services and seamless communications.
The ad hoc networks pose many complex and open problems in front of the researchers. This tutorial reveals the state-of-the-art in wireless ad hoc networking and discusses some of the key research topics such as: MAC, routing, QoS, CL optimization issues, service discovery, mobility models, security. The optimization approach is implemented to improve the efficiency of ad-hoc networking in the scarce wireless environment.
The tutorial focuses on cross-layer optimisations, and presents examples of such approaches with combinations of link layer and routing techniques, MAC design, and service discovery. It provides novel solutions for more consistent QoS in ad hoc environments.

Presenter: Liljana Gavrilovska, Faculty of Electrical Engineering, Skopj

Liljana Gavrilovska received her B.Sc., M.Sc. and Ph.D. from University of Skopje (76), University of Belgrade (85) and University of Skopje (95) respectively. She worked with the R&D department at Macedonian Telecom Company in field of telephone network planning. She joined the Faculty of Electrical Engineering, University of Skopje, Republic of Macedonia, where she currently holds a position of professor at Institute for Telecommunication and chief of Telecommunications Laboratory and CWMC (Center for Wireless and Mobile Communications), working in the area of networking and mobile communications. In 1982 she was involved in research project in area of digital data transmission at University of Erlangen, Germany. During 1992/1993, on Canadian government grant, she was involved with University of Toronto in research in ATM switches. For almost two years she joined the Centre for PersonKommunikation, Aalborg University, Denmark, where she was holding a position as Associate Research Professor and was involved in several EU and national/international projects. Her major research was concentrated on ad hoc networking, wireless and personal area networks, cross layer optimisations, future mobile systems, traffic analysis, admission techniques.Recently she has been involved in IST PACWOMAN and MAGNET projects in area of wireless personal networks, working part-time for CTiF, Aalborg University, Denmark. She participated in ACTS project ASAP working on the books Towards a Global 3G System: Advanced Mobile Communications in Europe, Vol. I and II (Artech House, 2001,Boston), CPK-Siemens joint project, Danish FACE project, national strategic projects for implementation of ATM in the Macedonian backbone network, GSM implementation and testing, numeration proposal, several Tempus projects, GTZ project for WLAN Design and Performance Evaluation. She is a senior member of IEEE and serves as a Chair of Macedonian Communication Chapter. L. Gavrilovska has published number of papers in the area of ad hoc and personal networking and recently has participated on several workshops. Together with prof. Ramjee Prasad, she has recently completed a book entitled: Ad hoc networking towards seamless communications, which will be published by Springer Pbl..

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